1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mafiozo [28]
2 years ago
11

How many atoms of Na are in 1.89 mol of Na?

Chemistry
1 answer:
atroni [7]2 years ago
5 0

Answer:

1.138158E24 atoms or 1.14 x 10^24 atoms

Explanation:

To find atoms/particles from moles you just want to convert using avogadro's number which is 6.022 x 10^23

1.89 mol x 6.022 • 10^23

———— = 1.138158E24 atoms

1 mol

so 1.138158E24 atoms or 1.14 x 10^24 for scientific notation

hope this helps :)

You might be interested in
The total pressure of gases a, b, and c in a closed container is 4.1 atm. if the mixture is 36% a, 42% b, and 22% c by volume, w
Natali [406]

 The  partial  pressure of  gas C  is 0.902  atm


  calculation

partial pressure of gas c  =[( percent by volume of  gas   C /  total  percent)   x total pressure]


percent  by  volume of gas C= 22%

Total   percent  = 36% +42%  + 22%  = 100 %

Total  pressure  =  4.1 atm


partial  pressure  of gas C  is therefore =  22/100 x 4.1 atm = 0.902  atm

3 0
4 years ago
Read 2 more answers
Which of the following best describes subduction?
siniylev [52]

Answer:

A more dense plate going underneath a less dense plate.

5 0
2 years ago
What happens when a cell that has an internal salt concentration of 0.15M NaCl is placed into a solution of 0.01M NaCl?
Julli [10]

Answer: the cell will absorb more water which can lead to haemolysis (rising and bursting of the cell)

Explanation:

7 0
3 years ago
Which of the following compounds is least soluble in water?
hjlf

Answer:

3) iron (iii) hydroxide

Explanation:

4 0
3 years ago
A compound is found to contain 73.23% xenon name 26.77% oxygen by mass. What is the empirical formula for this compound ?
Luba_88 [7]

The empirical formula is XeO₃.

<u>Explanation:</u>

Assume 100 g of the compound is present. This changes the percents to grams:

Given mass in g:

Xenon = 73.23 g

Oxygen = 26.77 g

We have to convert it to moles.

Xe = 73.23/   131.293 = 0.56 moles

O = 26.77/ 16 = 1.67 moles

Divide by the lowest value, seeking the smallest whole-number ratio:

Xe = 0.56/ 0.56 = 1

O = 1.67/ 0.56 = 2.9 ≈3

So the empirical formula is XeO₃.

6 0
3 years ago
Other questions:
  • Change 2.6 km/day to m/week
    9·1 answer
  • the buret is dirty and drops of NaOH cling to the side walls of the buret as it drained. How does this affect the result for NaO
    9·1 answer
  • A solution is saturated when it contains the maximum amount of solute for the given solvent.
    15·2 answers
  • What are the physical properties of the element lithium?
    9·1 answer
  • A titration of 25.0 mL of a solution of the weak base aniline, C6H5NH2, requires 25.67 mL of 0.175 M HCl to reach the equivalenc
    13·1 answer
  • If the half-cell containing 1.00 M Fe(NO3)2(aq) in galvanic cells Y and Z is replaced with a half-cell containing 5.00 M Fe(NO3)
    11·1 answer
  • Which layer is thin, brittle, solid, and composed primarily of silica?
    11·1 answer
  • What might go wrong while heating a substance<br> with a candle?
    11·2 answers
  • What are common materials​
    5·1 answer
  • How can teh human body looose heat? (conduction, convecion, radiation) and WHY
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!